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By certification 
"Applicable Scope
The products are used for controlling the medium to open and close; prevent refluence in fuel oil piping, lubricating oil piping, water piping ,air piping, gas piping and steam piping at temperatures 205℃ or less.
Manufactured in accordance to JIS F7400
Flanges as per JIS B2220-16k
Materials of major parts
1 - Body - Cast Iron - FC20
2 - Seat - Bronze - BC6
3 - Disc - Bronze - BC6
4 - Stem - Brass - C3771BD"
The products are used for controlling the medium to open and close; prevent refluence in fuel oil piping, lubricating oil piping, water piping ,air piping, gas piping and steam piping at temperatures 205℃ or less.
Manufactured in accordance to JIS F7400
Flanges as per JIS B2220-16k
Materials of major parts
1 - Body - Cast Iron - FC20
2 - Seat - Bronze - BC6
3 - Disc - Bronze - BC6
4 - Stem - Brass - C3771BD"
